From Ω- To Ωb, doubly heavy baryons and exotics

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Abstract

I discuss accurate theoretical predictions for masses of baryons containing the b quark. I point out an approximate effective supersymmetry between heavy quark baryons and mesons and provide predictions for the magnetic moments of Λc and Λb. Proper treatment of the color-magnetic hyperfine interaction in QCD is crucial for obtaining these results. Closely related methods are then applied to doubly-heavy hadrons: the recently observed exotic Q¯Qq¯q mesons and QQq baryons. Predictions are given for the masses and decay modes of additional Q¯Qq¯q mesons and of QQq baryons: Ξcc(ccq), Ξbb(bbq) and Ξbc(bcq), which might soon be seen experimentally, as indicated by the large number of Bc mesons observed by LHCb.

Original languageEnglish
Article number1530007
JournalInternational Journal of Modern Physics A
Volume30
Issue number1
DOIs
StatePublished - 10 Jan 2014

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